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Fingerprint recognition using fprint
By Jake Edge November 20, 2007
Fingerprint scanners are becoming more commonplace, especially on laptops,
to add a layer of biometric authentication. Linux support for these devices has been
somewhat varied, with each scanner model supported by its own driver
and API, or not supported at all. In addition, a number of the drivers are
closed source; something that should worry anyone installing security
software. The fprint
project aims to change that by providing a standardized API for as many
different scanners as it can.
Born out of a Computer Science academic project for founder Daniel Drake,
fprint was released this month under the LGPL. Unlike other scanner projects,
fprint is not targeted at a specific device, it
supports
quite a few using a half-dozen or so different drivers. The drivers, as
the name would imply, handle the low-level details of talking to the devices
using libusb.
Fingerprint scanners all work differently; some process the image of the
print internally, while others present the image to the driver. In order
to have a standard API, regardless of the scanner used, the libfprint
library handles those differences internally. If required, it uses
image processing
code from the US National Institute of Standards and Technology that is
specifically designed for fingerprint matching.
In order to use fingerprints for authentication, there must be a training
or enrollment mode where the scanned fingerprint is stored away for later
use. Once that has been done, fingerprints can be verified for a particular
user. fprint does not yet support identification mode, where an unknown
finger is scanned and a database of stored prints is checked for a match.
The current code requires a username or other identifier, comparing the
print stored for that user with the one scanned.
Because it handles multiple devices, there could be occasions where there
is a print stored for a particular user, but it was scanned with a different
device. Some fprint drivers can handle multiple similar scanners, so it
distinguishes between them using a device type assigned by the driver. It
tags each stored print with the driver ID as well as the device type. To
be comparable, the
prints must have come from the same driver with the same device type.
Application writers do not want to have to interface to multiple different
library APIs to support fingerprint authentication. The
libfprint API
provides a single interface for applications. All phases of dealing with
the scanners are available through the API: device discovery, print
enrollment, print discovery, and verification. In addition,
pam_fprint
has integrated with Pluggable Authentication Modules (PAM) to handle logging
in via fingerprint instead of password.
There are other projects out there solving similar problems, but none seems
to have taken the big picture view that fprint has. The Debian FingerForce
team has gathered a list of
Linux fingerprint scanning solutions, most of which are specific to a
particular scanner or family of scanners.
BioAPI also tries to abstract away the
specifics of biometric authentication, but it is not a free standard.
By trying to support as many scanners as they can, while providing a generic
interface, fprint seems to have the right approach to fingerprint
authentication. There is still plenty to be worked on, fingerprint data
is currently stored unencrypted for example, but the approach seems sound.
For anyone with a scanner on their laptop, or a USB version that they carry
around, applications supporting fprint will be very welcome. Anyone creating
software that is interested in supporting fingerprint authentication, will
definitely want to give fprint a look.
Comments (18 posted)
Security news
Wordpress Cookie Authentication Vulnerability
A Wordpress cookie vulnerability exploit is floating around in the wild according to the advisory (Full Story link below). Anyone who has (or can get) access to the wp_users table can authenticate as any user, including the administrative user. Passwords are stored in the table as MD5 hashes, but the cookies contain the MD5 of that value (i.e. a double MD5 of the password). Attackers just need to provide the MD5 of the value they find in the database in a cookie to be authenticated as that user. There is no patch and there are no very satisfactory workarounds other than changing every user password and ensuring that no one can access the database after that.
Full Story (comments: 22)
Schneier: The Strange Story of Dual_EC_DRBG
Bruce Schneier has posted an interesting look at a U.S. random number generator standard. " What Shumow and Ferguson showed is that these numbers have a relationship with a second, secret set of numbers that can act as a kind of skeleton key. If you know the secret numbers, you can predict the output of the random-number generator after collecting just 32 bytes of its output. To put that in real terms, you only need to monitor one TLS internet encryption connection in order to crack the security of that protocol. If you know the secret numbers, you can completely break any instantiation of Dual_EC_DRBG."
Comments (4 posted)
Google as a password cracker (Light Blue Touchpaper)
Light Blue Touchpaper covers a somewhat surprising use of Google to crack Wordpress passwords. Other passwords stored as hashed values without salt would also be vulnerable to this kind of search. " Instead, I asked Google. I found, for example, a genealogy page listing people with the surname 'Anthony', and an advert for a house, signing off 'Please Call for showing. Thank you, Anthony'. And indeed, the MD5 hash of 'Anthony' was the database entry for the attacker. I had discovered his password."
Comments (6 posted)
New vulnerabilities
apache2: denial of service
| Package(s): | apache2 |
CVE #(s): | CVE-2007-1863
|
| Created: | November 19, 2007 |
Updated: | February 18, 2008 |
| Description: |
From the CVE entry:
cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, allows remote attackers to cause a denial of service (child processing handler crash) via a request with the (1) s-maxage, (2) max-age, (3) min-fresh, or (4) max-stale Cache-Control headers without a value. |
| Alerts: |
|
Comments (1 posted)
bochs: denial of service
| Package(s): | bochs |
CVE #(s): | CVE-2007-2894
|
| Created: | November 19, 2007 |
Updated: | November 20, 2007 |
| Description: |
From the CVE entry:
The emulated floppy disk controller in Bochs 2.3 allows local users of the guest operating system to cause a denial of service (virtual machine crash) via unspecified vectors, resulting in a divide-by-zero error. |
| Alerts: |
|
Comments (none posted)
mailman: error log spoof
| Package(s): | mailman |
CVE #(s): | CVE-2006-4624
|
| Created: | November 15, 2007 |
Updated: | November 20, 2007 |
| Description: |
The Mailman mailing list manager is vulnerable to log file spoofing.
A remote attacker can insert carriage return/line feed sequences,
causing invalid error log messages to be recorded. This makes
it possible to trick the administrator into visiting malicious URLs. |
| Alerts: |
|
Comments (1 posted)
MySQL: denial of service
| Package(s): | mysql |
CVE #(s): | CVE-2007-5925
|
| Created: | November 19, 2007 |
Updated: | February 8, 2008 |
| Description: |
From the CVE entry:
The convert_search_mode_to_innobase function in ha_innodb.cc in the InnoDB engine in MySQL 5.1.23-BK and earlier allows remote authenticated users to cause a denial of service (database crash) via a certain CONTAINS operation on an indexed column, which triggers an assertion error. |
| Alerts: |
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Comments (none posted)
net-snmp: denial of service
| Package(s): | net-snmp |
CVE #(s): | CVE-2007-5846
|
| Created: | November 16, 2007 |
Updated: | February 7, 2008 |
| Description: |
A flaw was discovered in the way net-snmp handled certain requests. A
remote attacker who can connect to the snmpd UDP port (161 by default)
could send a malicious packet causing snmpd to crash, resulting in a
denial of service. |
| Alerts: |
|
Comments (none posted)
openssh: log file corruption
| Package(s): | openssh |
CVE #(s): | CVE-2007-3102
|
| Created: | November 15, 2007 |
Updated: | November 20, 2007 |
| Description: |
The ssh server can incorrectly write account names to the
audit subsystem. A remote attacker can inject strings with
parts of audit messages in order to corrupt logs. This can
mislead administrators and confuse log parsing tools.
|
| Alerts: |
|
Comments (1 posted)
pcre: CVE consolidation
| Package(s): | pcre |
CVE #(s): | CVE-2005-4872
CVE-2006-7227
CVE-2006-7224
|
| Created: | November 15, 2007 |
Updated: | May 13, 2008 |
| Description: |
PCRE has flaws in the way it handles malformed regular
expressions.
If an application linked against PCRE, such as Konqueror,
encounters a maliciously created regular expression, it may be possible
to run arbitrary code. Vulnerabilities CVE-2005-4872 and CVE-2006-7227
have been combined into CVE-2006-7224. |
| Alerts: |
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Comments (5 posted)
php5: multiple vulnerabilities
| Package(s): | php5 |
CVE #(s): | CVE-2007-4783
CVE-2007-4840
CVE-2007-5898
CVE-2007-5899
CVE-2007-5900
|
| Created: | November 20, 2007 |
Updated: | July 16, 2008 |
| Description: |
The php5 package contains multiple vulnerabilities, the most serious of which involve several Denial of Service attacks (application crashes and temporary application hangs). It is not currently known that these vulnerabilities can be exploited to execute malicious code. |
| Alerts: |
|
Comments (none posted)
php-pear-MDB2: URL injection
| Package(s): | php-pear-MDB2-Driver-mysql |
CVE #(s): | CVE-2007-5934
|
| Created: | November 16, 2007 |
Updated: | December 10, 2007 |
| Description: |
The PEAR MDB2 in versions prior to 2.5.0a1 can interpret a request to
store a URL string as a request to retrieve and store the contents of the URL. This can allow remote attackers to obtain information by inserting
a URL in a form field in an MDB2 application. |
| Alerts: |
|
Comments (none posted)
pioneers: denial of service
| Package(s): | pioneers |
CVE #(s): | CVE-2007-5933
|
| Created: | November 15, 2007 |
Updated: | November 30, 2007 |
| Description: |
Bas Wijnen discovered a vulnerability in the Pioneers server.
Sessions objects may be freed while in use, allowing unauthorized
memory access. A remote attacker can use this to cause a denial of service. |
| Alerts: |
|
Comments (none posted)
rails: multiple vulnerabilities
| Package(s): | rails |
CVE #(s): | CVE-2007-5380
CVE-2007-3227
CVE-2007-5379
|
| Created: | November 15, 2007 |
Updated: | December 5, 2007 |
| Description: |
Ruby on Rails has the following vulnerabilities:
ActiveResource does not properly sanitize filenames in the Hash.from_xml() function.
The session_id can be set from the URL from the session management.
The to_json() function does not properly sanitize input before it is
returned to the user. |
| Alerts: |
|
Comments (none posted)
samba: buffer overflow
| Package(s): | samba |
CVE #(s): | CVE-2007-5398
|
| Created: | November 15, 2007 |
Updated: | December 11, 2007 |
| Description: |
Samba's mechanism for creating NetBIOS replies is vulnerable to a
buffer overflow. Samba servers that are configured to run as a
WINS server can be crashed by a remote unauthenticated user,
execution of arbitrary code may also be possible. |
| Alerts: |
|
Comments (none posted)
samba: buffer overflow
| Package(s): | samba |
CVE #(s): | CVE-2007-4572
|
| Created: | November 15, 2007 |
Updated: | July 1, 2008 |
| Description: |
The Samba user authentication is vulnerable to a heap-based buffer overflow.
Remote unauthenticated users can use this to crash the Samba server
and cause a denial of service. |
| Alerts: |
|
Comments (none posted)
teTeX: multiple vulnerabilities
| Package(s): | tetex |
CVE #(s): | CVE-2007-5937
CVE-2007-5936
CVE-2007-5935
|
| Created: | November 19, 2007 |
Updated: | May 9, 2008 |
| Description: |
From the Gentoo advisory:
Joachim Schrod discovered several buffer overflow vulnerabilities and
an insecure temporary file creation in the "dvilj" application that is
used by dvips to convert DVI files to printer formats (CVE-2007-5937,
CVE-2007-5936). Bastien Roucaries reported that the "dvips" application
is vulnerable to two stack-based buffer overflows when processing DVI
documents with long \href{} URIs (CVE-2007-5935). teTeX also includes
code from Xpdf that is vulnerable to a memory corruption and two
heap-based buffer overflows (GLSA 200711-22); and it contains code from
T1Lib that is vulnerable to a buffer overflow when processing an overly
long font filename (GLSA 200710-12). |
| Alerts: |
|
Comments (none posted)
tomcat: arbitrary file disclosure via path traversal
| Package(s): | tomcat5 |
CVE #(s): | CVE-2007-5461
|
| Created: | November 19, 2007 |
Updated: | April 28, 2008 |
| Description: |
From the CVE entry:
Absolute path traversal vulnerability in Apache Tomcat 4.0.0 through 4.0.6, 4.1.0, 5.0.0, 5.5.0 through 5.5.25, and 6.0.0 through 6.0.14, under certain configurations, allows remote authenticated users to read arbitrary files via a WebDAV write request that specifies an entity with a SYSTEM tag. |
| Alerts: |
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Comments (none posted)
VMware: unspecified vulnerability
| Package(s): | VMware |
CVE #(s): | CVE-2007-5617
|
| Created: | November 19, 2007 |
Updated: | November 20, 2007 |
| Description: |
From the CVE entry:
Unspecified vulnerability in VMware Player 1.0.x before 1.0.5 and 2.0 before 2.0.1, and Workstation 5.x before 5.5.5 and 6.x before 6.0.1, prevents it from launching, which has unspecified impact, related to untrusted virtual machine images. |
| Alerts: |
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Comments (none posted)
vmware-player-kernel: several vulnerabilities
| Package(s): | linux-restricted-modules-2.6.17/20, vmware-player-kernel-2.6.15 |
CVE #(s): | CVE-2007-0061
CVE-2007-0062
CVE-2007-0063
CVE-2007-4496
CVE-2007-4497
|
| Created: | November 16, 2007 |
Updated: | November 20, 2007 |
| Description: |
Neel Mehta and Ryan Smith discovered that the VMWare Player DHCP server
did not correctly handle certain packet structures. Remote attackers
could send specially crafted packets and gain root privileges.
(CVE-2007-0061, CVE-2007-0062, CVE-2007-0063)
Rafal Wojtczvk discovered multiple memory corruption issues in VMWare
Player. Attackers with administrative privileges in a guest operating
system could cause a denial of service or possibly execute arbitrary
code on the host operating system. (CVE-2007-4496, CVE-2007-4497)
|
| Alerts: |
|
Comments (none posted)
Updated vulnerabilities
3proxy: denial of service
| Package(s): | 3proxy |
CVE #(s): | CVE-2007-5622
|
| Created: | November 9, 2007 |
Updated: | November 14, 2007 |
| Description: |
Double-free vulnerability in the ftpprchild function in ftppr in 3proxy 0.5
through 0.5.3i allows remote attackers to cause a denial of service (daemon
crash) via multiple OPEN commands to the FTP proxy. |
| Alerts: |
|
Comments (none posted)
Django: denial of service
| Package(s): | Django |
CVE #(s): | CVE-2007-5712
|
| Created: | November 12, 2007 |
Updated: | May 21, 2008 |
| Description: |
From the CVE notice:
The internationalization (i18n) framework in Django 0.91, 0.95, 0.95.1, and 0.96, and as used in other products such as PyLucid, when the USE_I18N option and the i18n component are enabled, allows remote attackers to cause a denial of service (memory consumption) via many HTTP requests with large Accept-Language headers. |
| Alerts: |
|
Comments (none posted)
perl: arbitrary code execution
| Package(s): | Perl |
CVE #(s): | CVE-2007-5116
|
| Created: | November 6, 2007 |
Updated: | December 5, 2007 |
| Description: |
A flaw was found in Perl's regular expression engine. Specially crafted
input to a regular expression can cause Perl to improperly allocate memory,
possibly resulting in arbitrary code running with the permissions of the
user running Perl. (CVE-2007-5116)
|
| Alerts: |
|
Comments (none posted)
Sun JDK/JRE: multiple vulnerabilities
| Package(s): | Sun JDK/JRE |
CVE #(s): | CVE-2007-2435
CVE-2007-2788
CVE-2007-2789
|
| Created: | June 1, 2007 |
Updated: | April 18, 2008 |
| Description: |
An unspecified vulnerability involving an "incorrect use of system
classes" was reported by the Fujitsu security team. Additionally, Chris
Evans from the Google Security Team reported an integer overflow
resulting in a buffer overflow in the ICC parser used with JPG or BMP
files, and an incorrect open() call to /dev/tty when processing certain
BMP files. |
| Alerts: |
|
Comments (none posted)
apache2: information disclosure
| Package(s): | apache |
CVE #(s): | CVE-2007-1862
|
| Created: | June 20, 2007 |
Updated: | February 18, 2008 |
| Description: |
From the Mandriva advisory: "The recall_headers function in mod_mem_cache in Apache 2.2.4 does not
properly copy all levels of header data, which can cause Apache to
return HTTP headers containing previously-used data, which could be
used to obtain potentially sensitive information by unauthorized users." |
| Alerts: |
|
Comments (2 posted)
apache: multiple vulnerabilities
| Package(s): | apache |
CVE #(s): | CVE-2007-3304
CVE-2006-5752
|
| Created: | June 27, 2007 |
Updated: | February 18, 2008 |
| Description: |
The Apache HTTP Server did not verify that a process was an Apache child
process before sending it signals. A local attacker who has the ability to
run scripts on the Apache HTTP Server could manipulate the scoreboard and
cause arbitrary processes to be terminated, which could lead to a denial of
service. (CVE-2007-3304)
A flaw was found in the Apache HTTP Server mod_status module. Sites with
the server-status page publicly accessible and ExtendedStatus enabled were
vulnerable to a cross-site scripting attack. On Red Hat Enterprise Linux
the server-status page is not enabled by default and it is best practice to
not make this publicly available. (CVE-2006-5752) |
| Alerts: |
|
Comments (1 posted)
apache: cross-site scripting
| Package(s): | apache |
CVE #(s): | CVE-2006-3918
|
| Created: | August 9, 2006 |
Updated: | April 4, 2008 |
| Description: |
From the Red Hat advisory: "A bug was found in Apache where an invalid Expect header sent to the server
was returned to the user in an unescaped error message. This could
allow an attacker to perform a cross-site scripting attack if a victim was
tricked into connecting to a site and sending a carefully crafted Expect
header." |
| Alerts: |
|
Comments (none posted)
httpd: denial of service, cross-site scripting
| Package(s): | apache httpd |
CVE #(s): | CVE-2007-3847
CVE-2007-4465
|
| Created: | September 25, 2007 |
Updated: | February 15, 2008 |
| Description: |
A flaw was found in the mod_proxy module. On sites where a reverse proxy is
configured, a remote attacker could send a carefully crafted request that
would cause the Apache child process handling that request to crash. On
sites where a forward proxy is configured, an attacker could cause a
similar crash if a user could be persuaded to visit a malicious site using
the proxy. This could lead to a denial of service if using a threaded
Multi-Processing Module. (CVE-2007-3847)
A flaw was found in the mod_autoindex module. On sites where directory
listings are used, and the AddDefaultCharset directive has been removed
from the configuration, a cross-site-scripting attack may be possible
against browsers which do not correctly derive the response character set
following the rules in RFC 2616. (CVE-2007-4465) |
| Alerts: |
|
Comments (none posted)
bochs: buffer overflow
| Package(s): | bochs |
CVE #(s): | CVE-2007-2893
|
| Created: | July 20, 2007 |
Updated: | November 19, 2007 |
| Description: |
A heap-based buffer overflow in the bx_ne2k_c::rx_frame function in
iodev/ne2k.cc in the emulated NE2000 device in Bochs 2.3 allows local users
of the guest operating system to write to arbitrary memory locations and
gain privileges on the host operating system via vectors that cause TXCNT
register values to exceed the device memory size, aka "RX Frame heap
overflow." |
| Alerts: |
|
Comments (none posted)
cacti: denial of service
| Package(s): | cacti |
CVE #(s): | CVE-2007-3112
CVE-2007-3113
|
| Created: | September 18, 2007 |
Updated: | February 18, 2008 |
| Description: |
A vulnerability in Cacti 0.8.6i and earlier versions allows remote
authenticated users to cause a denial of service (CPU consumption) via
large values of the graph_start, graph_end, graph_height, or graph_width
parameters. |
| Alerts: |
|
Comments (none posted)
centericq: buffer overflows
| Package(s): | centericq |
CVE #(s): | CVE-2007-3713
|
| Created: | July 20, 2007 |
Updated: | December 17, 2007 |
| Description: |
Multiple buffer overflows in Konst CenterICQ 4.9.11 through 4.21 allow
remote attackers to execute arbitrary code via unspecified vectors. NOTE:
the provenance of this information is unknown; the details are obtained
solely from third party information. NOTE: this might overlap
CVE-2007-0160. |
| Alerts: |
|
Comments (none posted)
clamav: denial of service
| Package(s): | clamav |
CVE #(s): | CVE-2007-3725
|
| Created: | July 24, 2007 |
Updated: | February 27, 2008 |
| Description: |
A NULL pointer dereference has been discovered in the RAR VM of Clam
Antivirus (ClamAV) which allows user-assisted remote attackers to
cause a denial of service via a specially crafted RAR archives. |
| Alerts: |
|
Comments (none posted)
clamav: multiple vulnerabilities
| Package(s): | clamav |
CVE #(s): | CVE-2007-4510
CVE-2007-4560
|
| Created: | September 3, 2007 |
Updated: | February 13, 2008 |
| Description: |
Several remote vulnerabilities have been discovered in the Clam anti-virus
toolkit. The Common Vulnerabilities and Exposures project identifies the
following problems:
CVE-2007-4510:
It was discovered that the RTF and RFC2397 parsers can be tricked
into dereferencing a NULL pointer, resulting in denial of service.
CVE-2007-4560:
It was discovered clamav-milter performs insufficient input
sanitizing, resulting in the execution of arbitrary shell commands.
|
| Alerts: |
|
Comments (none posted)
conga: denial of service
| Package(s): | conga |
CVE #(s): | CVE-2007-4136
|
| Created: | November 7, 2007 |
Updated: | November 22, 2007 |
| Description: |
A flaw was found in ricci during a code audit. A remote attacker who is
able to connect to ricci could cause ricci to temporarily refuse additional
connections, a denial of service (CVE-2007-4136). |
| Alerts: |
|
Comments (none posted)
cups: denial of service
| Package(s): | cups |
CVE #(s): | CVE-2007-0720
|
| Created: | March 26, 2007 |
Updated: | February 7, 2008 |
| Description: |
Previous versions of the cups package could be forced to hang via a client
"partially negotiating" an ssl connection. In this state, cups would not
allow other connections to be made, a denial of service. |
| Alerts: |
|
Comments (none posted)
cups: buffer overflow
| Package(s): | cups |
CVE #(s): | CVE-2007-4351
|
| Created: | October 31, 2007 |
Updated: | November 19, 2007 |
| Description: |
The CUPS code charged with dealing with TCP-based Internet Printer Protocol connections suffers from a buffer overflow which could possibly be exploitable remotely. The vulnerability is only present if remote hosts are allowed to connect to the IPP port, which is usually not the default setting. |
| Alerts: |
|
Comments (none posted)
gpdf: integer overflow
| Package(s): | cups poppler xpdf |
CVE #(s): | CVE-2007-3387
|
| Created: | July 31, 2007 |
Updated: | November 28, 2007 |
| Description: |
The gpdf library contains an integer overflow which can be exploited via a malicious PDF file. This code finds its way into multiple packages, including xpdf, kpdf, poppler, cups, and more. |
| Alerts: |
|
Comments (1 posted)
debian-goodies: privilege escalation
| Package(s): | debian-goodies |
CVE #(s): | CVE-2007-3912
|
| Created: | October 5, 2007 |
Updated: | March 24, 2008 |
| Description: |
Thomas de Grenier de Latour discovered that the checkrestart program included
in debian-goodies did not correctly handle shell meta-characters. A local
attacker could exploit this to gain the privileges of the user running
checkrestart. |
| Alerts: |
|
Comments (none posted)
dovecot: privilege escalation
| Package(s): | dovecot |
CVE #(s): | CVE-2007-4211
|
| Created: | August 15, 2007 |
Updated: | May 21, 2008 |
| Description: |
From the rPath advisory: "Previous versions of the dovecot package are vulnerable to a
minor privilege escalation attack in which an authenticated
user may exploit an ACL plugin weakness to save message flags
without having proper permissions." |
| Alerts: |
|
Comments (none posted)
dovecot: directory traversal
| Package(s): | dovecot |
CVE #(s): | CVE-2007-2231
|
| Created: | May 8, 2007 |
Updated: | May 21, 2008 |
| Description: |
Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot
before 1.0.rc29, when using the zlib plugin, allows remote attackers to
read arbitrary gzipped (.gz) mailboxes (mbox files) via a .. (dot dot)
sequence in the mailbox name. |
| Alerts: |
|
Comments (none posted)
drupal: multiple vulnerabilities
| Package(s): | drupal |
CVE #(s): | CVE-2007-5593
CVE-2007-5594
CVE-2007-5595
CVE-2007-5596
CVE-2007-5597
|
| Created: | October 24, 2007 |
Updated: | December 7, 2007 |
| Description: |
From the Fedora advisory:
- Upgrade to 5.3, fixes:
- HTTP response splitting.
- Arbitrary code execution.
- Cross-site scripting.
- Cross-site request forgery.
- Access bypass.
|
| Alerts: |
|
Comments (none posted)
eggdrop: stack-based buffer overflow
| Package(s): | eggdrop |
CVE #(s): | CVE-2007-2807
|
| Created: | September 7, 2007 |
Updated: | January 7, 2008 |
| Description: |
A stack-based buffer overflow in mod/server.mod/servrmsg.c in Eggdrop
1.6.18, and possibly earlier, allows user-assisted, malicious remote IRC
servers to execute arbitrary code via a long private message. |
| Alerts: |
|
Comments (none posted)
emacs: command execution via local variables
| Package(s): | emacs |
CVE #(s): | CVE-2007-5795
|
| Created: | November 14, 2007 |
Updated: | February 5, 2008 |
| Description: |
From the original Debian problem report: "In Debian's version of GNU Emacs 22.1+1-2, the `hack-local-variables'
function does not behave correctly when `enable-local-variables' is
set to :safe. The documentation of `enable-local-variables' states
that the value :safe means to set only safe variables, as determined
by `safe-local-variable-p' and `risky-local-variable-p' (and the data
driving them), but Emacs ignores this and instead sets all the local
variables." When this setting (which is not the default) is in effect, opening a hostile file could lead to the execution of arbitrary commands. |
| Alerts: |
|
Comments (1 posted)
evolution: format string error
| Package(s): | evolution |
CVE #(s): | CVE-2007-1002
|
| Created: | March 27, 2007 |
Updated: | February 27, 2008 |
| Description: |
A format string error in the "write_html()" function in calendar/gui/
e-cal-component-memo-preview.c when displaying a memo's categories can
potentially be exploited to execute arbitrary code via a specially crafted
shared memo containing format specifiers. |
| Alerts: |
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Comments (1 posted)
firebird: buffer overflow
| Package(s): | firebird |
CVE #(s): | CVE-2007-3181
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| Created: | July 2, 2007 |
Updated: | March 27, 2008 |
| Description: |
The Firebird DBMS has a buffer overflow vulnerability involving
the processing of connect requests with an overly large p_cnct_count
value. Remote attackers can send a specially crafted
request to the server in order to potentially execute arbitrary code with
the permissions of the Firebird user. |
| Alerts: |
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Comments (none posted)
firefox: multiple vulnerabilities
| Package(s): | firefox |
CVE #(s): | CVE-2007-3844
CVE-2007-3845
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| Created: | August 1, 2007 |
Updated: | February 20, 2008 |
| Description: |
A flaw was discovered in handling of "about:blank" windows used by
addons. A malicious web site could exploit this to modify the contents,
or steal confidential data (such as passwords), of other web pages.
(CVE-2007-3844)
Jesper Johansson discovered that spaces and double-quotes were
not correctly handled when launching external programs. In rare
configurations, after tricking a user into opening a malicious web page,
an attacker could execute helpers with arbitrary arguments with the
user's privileges. (CVE-2007-3845) |
| Alerts: |
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Comments (none posted)
firefox, thunderbird, seamonkey: multiple vulnerabilities
| Package(s): | firefox, thunderbird, seamonkey |
CVE #(s): | CVE-2007-3738
CVE-2007-3656
CVE-2007-3670
CVE-2007-3285
CVE-2007-3737
CVE-2007-3089
CVE-2007-3736
CVE-2007-3734
CVE-2007-3735
|
| Created: | July 18, 2007 |
Updated: | May 12, 2008 |
| Description: |
shutdown and moz_bug_r_a4 reported two separate ways to modify an
XPCNativeWrapper such that subsequent access by the browser would result in
executing user-supplied code. (CVE-2007-3738)
Michal Zalewski reported that it was possible to bypass the same-origin
checks and read from cached (wyciwyg) documents It is possible to access
wyciwyg:// documents without proper same domain policy checks through the
use of HTTP 302 redirects. This enables the attacker to steal sensitive
data displayed on dynamically generated pages; perform cache poisoning; and
execute own code or display own content with URL bar and SSL certificate
data of the attacked page (URL spoofing++). (CVE-2007-3656)
Internet Explorer calls registered URL protocols without escaping quotes
and may be used to pass unexpected and potentially dangerous data to the
application that registers that URL Protocol. (CVE-2007-3670)
Ronald van den Heetkamp reported that a filename URL containing %00
(encoded null) can cause Firefox to interpret the file extension
differently than the underlying Windows operating system potentially
leading to unsafe actions such as running a program. This is only
accessible locally. (CVE-2007-3285)
An attacker can use an element outside of a document to call an event
handler allowing content to run arbitrary code with chrome
privileges. (CVE-2007-3737)
Ronen Zilberman and Michal Zalewski both reported that it was possible to
exploit a timing issue to inject content into about:blank frames in a
page. When opening a window from a script, it is possible to spoof the
content of the newly opened window's frames within a short time frame,
while the window is loading. (CVE-2007-3089)
Mozilla contributor moz_bug_r_a4 demonstrated that the methods
addEventListener and setTimeout could be used to inject script into another
site in violation of the browser's same-origin policy. This could be used
to access or modify private or valuable information from that other
site. (CVE-2007-3736)
As part of the Firefox 2.0.0.5 update releases Mozilla developers fixed
many bugs to improve the stability of the product. Some of these crashes
that showed evidence of memory corruption under certain circumstances and
we presume that with enough effort at least some of these could be
exploited to run arbitrary code. Note: Thunderbird shares the browser
engine with Firefox and could be vulnerable if JavaScript were to be
enabled in mail. This is not the default setting and we strongly discourage
users from running JavaScript in mail. Without further investigation we
cannot rule out the possibility that for some of these an attacker might be
able to prepare memory for exploitation through some means other than
JavaScript, such as large images. (CVE-2007-3734, CVE-2007-3735) |
| Alerts: |
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Comments (none posted)
flac: arbitrary code execution
| Package(s): | flac |
CVE #(s): | CVE-2007-4619
|
| Created: | October 22, 2007 |
Updated: | January 21, 2008 |
| Description: |
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